Posted by PAT on Wednesday, April 6, 2011 at 5:14am.
Find the area of a pentagon ABCDE with verticles A(0,4),B(3,2),C(3,1), D(3,1) and E (3,2)

geometry  drwls, Wednesday, April 6, 2011 at 6:02am
I advise plotting the figure in (x,y) coordinates and breaking it up into rectangle BCDE and isosceles triangle AEB.
The next step will be easy.